The generation of aerosols and the contamination of surfaces arising from the use of a number of special purpose centrifuges have been measured. Except when sealed containers were used all the equipment tested generated airborne particles and contaminated surrounding surfaces. The magnitude of this contamination was shown to be associated with several factors, and it could be considerably reduc...

REFERENCES 1. Council Directive 80/778/EEC [European Economic Community] concerning the quality of drinking water intended for human consumption. July 15,1980. 2. Martin MV. The significance of the bacterial contamination of dental unit water systems. Br Dent J 1987;163:152-154. 3. Williams JF, Huntington MK, Johnston AM. Dental waterlines. A source of contamination. Infection Control and Steri...

Defect parameter extraction plays an important role in process control and yield prediction. A methodology of evaluating wafer level defect clustering will be presented to detect equipment specific particle contamination. For that, imaginary wafermaps of a variety of different chip areas are generated to calculate a yield-to-area dependency. Based on these calculations a Micro Density Distribut...

ceutical manufacturing that processing equipment be cleaned using validated procedures to avoid cross contamination from material remaining from a previously manufactured product (1–3). Potential residues remaining on the surfaces of equipment following processing steps (fermentation, for example) include, in addition to the product itself, a multitude of organic cellular components such as nuc...

The performance of Large-scale MIMO system is degraded by Pilot Contamination. In order to reduce Pilot Contamination, a downlink precoding algorithm is put forward, based on Interference Alignment (IA). The main idea of this algorithm is aligning the pilot contamination and inter-cell interference to the same null space in order to acquire the maximal degrees of freedom. Then the downlink rece...

PURPOSE We report three cases of Stenotrophomonas maltophilia endophthalmitis after uneventful extracapsular cataract extraction with intraocular lens implantation-related to surgical equipment contamination. CASE REPORT All patients developed acute, culture-positive endophthalmitis in a period ranging from 2 to 13 days. Cultures from vitreous tap, as well as those obtained from the hand-piec...